No, the S series goes to small miner to big

S1 small 180 ghash
s2 big  1000 ghash (or 1thash)
s3 small 440ish ghash
s4 big   2thash
c1 (middle)?) 1thash
s5 small but either 600-800?

The c1 is using their new miner but is pretty expensive (most are at launch) it may be a middle inbetween miner still for home use though.

c1 1thash (liquid cooled 2 s3 boards oc'ed)